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TABLE 4 <br /> Analytical Results of Pump-and-Treat Grab Ground Water Samples (µg/1) <br /> Chapin Bros , Inc - 1766 Monte Diablo Avenue, Stockton, California <br /> EPA 8015M EPA 8020/8260 <br /> Sample I D Date gallons Ethyl <br /> TPH-g TPH-d Benzene Taluene Benz ne <br /> Xylene MTBE <br /> EW-3 05-30-02 226,147 27,000 -- 1,600 410 1,300 5,400 <500 <br /> EW-3 09-19-09 1,028,683 12,000 -- 670 44 <10 1,600 <100 <br /> EW-3 10-15-12 1,200,093 11,000 -- 850 110 750 1,600 <100 <br /> EW-3 02-17-03 1,835,317 11,000 -- 340 70 310 1,100 <50 <br /> EW-3 03-24-03 1,982,381 14,000 -- 1200 140 240 2,100 <25 <br /> EW-3 0415-03 2,139,002 11,000 -- 840 91 <10 1,400 -- <br /> VW-6 05-30-02 226,147 19,000 -- 520 330 1,200 3,800 <500 <br /> VW-6 10-15-02 1,200,093 13,000 -- 180 100 770 1,700 <250 <br /> VW-6 02-17-03 1,835,317 13,000 -- 100 87 530 1,400 <50 <br /> VW-6 03-24-03 1,982,381 10,000 -- 62 41 450 760 <10 <br /> VW-6 04-15-03 2,139,002 9,400 -- 26 41 460 830 -- <br /> Notes <br /> pgll micrograms per Mer <br /> MTBE methyl tertiary butyl ether <br /> TPH-d Total Petroleum Hydrocarbons as diesel <br /> TPH-g Total Petroleum Hydrocarbons as gasoline <br />